Origin of GLIRIDAE. New Latin, from Glir-, Glis, type genus + -idae. This word doesn't usually appear in our free dictionary, but the definition from our premium Unabridged Dictionary is offered here on a limited basis.Note that some information is displayed differently in the Unabridged.rigin of GLIRIDAE. New Latin, from Glir-, Glis, type genus + -idae. This word doesn't usually appear in our free dictionary, but the definition from our premium Unabridged Dictionary is offered here on a limited basis.
knockout mouse(Noun) Any of several forms of mice that have been genetically engineered by inactivating specific genes. Knockout mouse. A knockout mouse is a genetically engineered mouse in which researchers have inactivated, or knocked out, an existing gene by replacing it or disrupting it with an artificial piece of DNA.
With an average lifespan of 18 months, and an average of 10 babies per litter, a single female mouse can produce more than 300 offspring in her lifetime, making careful sexing a necessity unless you wish to become a mouse breeder.